Shock- absorber



C. P. cf BRETSCHNEIUER.

SHOCK ABSORBEH.

APPLICATION FILED NOV- 1915 Patented Aug. 22, 1916 3 SHEETS-SHEET l.

c. Ii; c. BR'ETSCHNEIDER.

SHOCK ABSOR'BER.

APPLICATION FILED NOV.. I, 1915.

www

@Wumeewg l I I Q C. P. c. BRETSCHNEIDER. SHCK ABSORBER. APPLICATIONFILED NOV. 1. 1915.

Patented-A110. 22, 1916.

SHEETS-SHEET 3.

@Enom/91p( UNiTED STATES PATENT oFFicE.

CARL P. C. BRETSCHNEIDER, 0F PHILADELPHIA, PENNSYLVANIA.

'Specification of Letters Patent. i

sHooK-Aissonisnn. r

l Application filed November 1, 1915. Serial No..58,952.

`To all lwhom it may concern.:

Be it known that I, .CARL P. C. Bmir- SCHNEIDER, of Philadelphia, in thecounty of Philadelphia andl State of' Pennsylvania,

have invented certain new and useful Im-y provements in Shock-Absorbers,whereof the following is a specification, reference being had to theaccompanying drawings. 0

The primary purpose of my invention 1s to construct a shock-.absorberwhich is capable of being used, interchangeably,'either at the front orrear end of an ordinary type of motor vehicle. In the usualvorganization of the chassis with relation to the springs of the vehicle,the extension of the chassis. which engages with the spring, 1sarranged' vabove the'point of attachment to the latter,

at 'the front end of the vehicle, and extends below said point, at therear end of the vehicle. Considering the shock-absorber as anintervening spring link connecting the vehicle spring and the chassis,and also as a compression member, the usual organization of partsrequires that the spring element of the shocklabsorber should be ar-Referring now to the accompanying drawings, Figure I is an external sideelevation showing the shock' absorber as attached to the front end ofthe chassis, and Fig. II, is a simi ar view, showing the device attachedto the rear end therecff: Fig. III, is a verl tical axial view throughthe shock absorber,

, and its points of attachment, corresponding with the employment of thedevice indicated in Fig. II, z'. Ve., at the rear end of the. ve-`hicle. Fig. VIV, is a vertical section at right angles to that shown inFig. III. Fig. V, is a transverse section on the line V, V, of Fig.(IV.y Figs. VI, and VII, areyperspective 'views of certain of theinterior parts.

Fig. VIII, is a vertical sectionthrough the' s1 ook absorberand itspoints of support wen in the-positioncorrespondingto that shown in Fig.I, z'. e., at. the front end of the figure. Fig. IX, isa top or planView thereof, and Fig. X, a partial transverse sectional view on theline X, X of Fig. VIII.

ment of the description, the main features comprise an external casing,which may be consideredl as .generally cylindrical, but

which comprises vportions of different interf Patented Aug. 2,2, 191e. Y

'6G Referring to the shock absorber itself, and `taking Figs. III toVII, forvthe commencenal diameter, the external diameter also y varyingat Asaid portions for economy of metal. Thus, the lower portion 1, is ofthe smallest diameter, and is threaded externally at its lower extremityto receive the internally threaded cup 3, which closes the bottom of thecasing.' Above the portion 1, the Iinternal-diameteris' enlarged asshown at 2,- in order lto freely receive the cylindrical 'wall of thecap member 4, which closes' the upper extremity of the springchamber.Said cap member comprises a horizontal top 5, and two diametricaluprights 6, and 7,

formed integrally therewith, said uprights being offset outwardly fromthe cylindrical wall 4, in order to afford a' wide interspace forattachment to thepoint of support. This offset vproduces an externalshoulder '8,l

" which may be considered as .-annular, in that it extends throughoutabout three-quarters of the periphery, but may be 'cut away at i oneface, as indicated at 9, in-Fig. VI.

The upper portion 10, of the external cas?- ing is of enlarged internaldiameter, in orcut laway vertically at oney side, as indiao.l ydertofreely receive saidlange, and is itse1f' f cated at 11,'.so thatthetop -of the external j casing `terminates at that sideat a pointwhich substantially corresponds with the termination of the portionhaving the inter# naldiameter characteristic' ofthe Vpart 2. Thus, thecap 4, is supported and guidedjat both ends,"the lower portion byitstelescoping engagement with the intemalwall'ofthe part 2, of thecasing,the upper 'portion' by the engagement of the annular shoulder 8,

with the internal wall of the'portion 10,'of` f' the casing, but thefreevver'ticall space pro- `vided inthe wall of said upper portion111,),` permits vertical movement ofthe supporting member connected 'tothe uprights 6, and 7.k The upper portion 'of the casing 10, is alsoprovided withtivo uprights 15,.and 16, respectively, which are prolongedconsiderably -abovethe upper extremity ofthe uprights 6, and 7.

iio-v tion. The shock absorber itself is'susceptr ble of use in eithervertical position, and

'-c-,onscquentlyy available for attachment either readily made byturning or boring with aA maximum of economy and at the same timeinsures proper support and free operation. The employment of thebridge-piece (economically produced as above stated by inak.

ing it originally an integral part of the uprights of the cap) affordsthe proper structural strength under either condition ot use,

giving an added function under oneof saidconditions.

l-Iaving thus described my invention, I claim: 1. In a shock-absorber,the combination of a casing having a cylindrical interior periphery andprovided with uprights having an internal cylindrical surface; a capmember having a wall with an external cylindrical surfacev adapted tofit snugly within the casing, said cap member being` pro'- vided withuprights having an external cy.- lindrical surface adapted to fit snuglywithin the uprights of the casing; a spring arranged within the chamberformed by the casing and the cap member; a bridgepiece provided'withwalls having an external cylindrical surface adapted to fit between theuprights of the casing; a transverse pin extending between the upriglitsof the cap and adapted to be connected with an external supportingmember; and a transverse pin extending through the bridge-'piece and theuprights of the casing, whereby the bridge-piece is attached to thecasing, and maybe attached to an externalsupporting -i'nember,substantially as set forth.

2. In a shock-absorber, the combination of a casing having a cylindricalinterior periphery and provided with uprights having an internalcylindrical surface, said casing having an open end and a closed end,`and a generally cylindrical external surface of different diameters atdierent longitudinal regions, the largest diameter being-adjacent to theopen end of thecasing; a cap 111cm-, ber having a wall with an externalcylindrical surface adapted to fit snugly within the casing, said capmember being provided with upriglits having an external cylindricalsurface adapted to fit snugly withiny the uprights Q f the casing; aspring arranged within thcphamber formed by the casing and the cap\rnember; a bridge-piece provided with walls having an. externalcylindrical surface adapted to tit' between the upriglits of the casing'a transverse pin extending between the uprights of the cap and adaptedto be connected with an external supporting member; a transverse pinextending.y through the bridge-piece and the uprights of tlie casing,whereby the bridgepiece is attached tothe casing; a socketpiecey with agenerally cylindrical internal cavity rof different diameters, adaptedto snugly receive the enlarged end portion of the casing and the portionofless external diameter adjacent thereto; and means whereby said casingmay be secured within the socket-piece, substantially as set forth.

3. In a shock-absorber, the combination of a casing having a cylindricalinterior periphery and provided withl uprights having an internalcylindrical surface, a cap member having a wall with an externalcylindrical surface adapted to tit snugly within the casing, said capmember being provided with uprights having anA external vcylindricalsurface adapted to t snugly within thevuprights of the casing; a springarranged within the chamber formed by the casing and the cap member; abridge-piece provided with walls having an external cylindrcal surfaceadapted to iit between the uprights of the casing; a transverse pinextending between the uprights of the cap and adapted'` to be connectedwith an external supporting member; a transverse pin extending throughthe bridge-piece and the upriglits of the casing, whereby thebridgepiece is attached to the casing; a socket piece adapted to fitsnugly over the casing; and means whereby said casing is securedto saidsocket piece. i

4. In a shock-absorber, the combination of a casing having an internalcylindrical surface of different diameters at different longitudinalregions, a capmember having an external cylindrical surface `adapted tolit snugly within one portion of the casing, and provided with` uprightshaving an external cylindricalsurface adapted Yto iit snugly withinanother portion of the casing, means for connecting an external sup-`Vania, this twenty-eighth day ofi-October,V

` CARL r. o. BRfrfrsoiiNiiinnii.

TVitnesses:

JAMES H. BELL, E. L. FULLnii'roN.

